ocean: [13] In Greek mythology, ōkeanós was a great river or sea that completely encircled the world. This was personified as Ōkeanós, a Titan who was god of this outer sea. The name passed into English via Latin ōceanus and Old French occean, and to begin with was used only for this mythical sea, or for the whole body of water surrounding the Eurasian landmass, with which it was identified. Not until the end of the 14th century did it begin to be applied to large individual sections of the Earth’s seas.
